It’s coming. The CW’s big DC crossover that includes Supergirl, Arrow, The Flash, and Legends of Tomorrow, is almost on upon us. What series of events will bring this all-star list of superheroes together? It’ll be based on the 1988 comic book event miniseries Invasion! from Keith Giffen, Bill Mantlo, Todd McFarlane, Bart Sears, and more. It will closely track the plot of that storyline: aliens will be assembled by The Dominators and descend on Earth to bring an end to the “threat” of Earth’s burgeoning metahuman community.

To get fans excited, EW has just released a teaser trailer for the mega crossover event, along with some photos from the episodes.

The FlashSeason 3, Episode 8 – “Invasion”(L-R) Grant Gustin as The Flash, Stephen Amell as Green Arrow and David Ramsey as John Diggle

As the photo descriptions make clear, these television event spanning 4 different shows, will kick off on Nov 28th with Supergirl. The exact order and dates are as follows:

Supergirl airs Mondays at 8 p.m. ET/PT; The Flash on Tuesdays at the same time; Arrow on Wednesdays and DC’s Legends of Tomorrow on Thursdays. All four series air on The CW. The “Invasion!” crossover will air beginning November 28.